You're absolutely correct IluvRNP. The Seven-Oh (B-707) was the first of the long Boeing line to utilize that type of electrical system. That philosophy continued through the 777; however, a new design has been implemented with the 787.

I thought that the 777 was unique in that the APU had a 90 KVA generator that would start both engines simultaneously, run both packs and carry 110% of the rated aircraft load. I guess the new B-787 will top that as III Corps posted.

Good day mates...and "let's start 1 & 3 and delay #2". Boy, those were the days !!